Determination of carbaryl by flow injection with luminol chemiluminescence inhibition detection
Determination of carbaryl by flow injection with luminol chemiluminescence inhibition detection
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DOI：
10.1080/03067310701380021
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发表时间：
2007-07
影响因子：
2.6
通讯作者：
A. Waseem;M. Yaqoob;A. Nabi;Masood Ahmed Siddiqui
中科院分区：
文献类型：
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作者：
A. Waseem;M. Yaqoob;A. Nabi;Masood Ahmed Siddiqui
研究了在碱性介质中过氧化氢存在下，西维因对鲁米诺-钴(II)化学发光反应的抑制作用，建立了流动注射测定西维因的新方法。西维因在5.0×10−7~2 0×10−6M范围内的相关系数(R2)为0.9972，相对标准偏差(n=4)为1.0~2.1%，检出限(3×空白噪声)为2.37×10−7M。样品吞吐量为120h−1。研究了某些氨基甲酸酯、阴离子和阳离子对鲁米诺化学发光体系测定西维因的影响。该方法已用于天然水中西维因的测定。
A flow-injection procedure is described for the determination of carbaryl based on its inhibition effect on luminol-cobalt(II) chemiluminescence reaction in alkaline medium in the presence of hydrogen peroxide. The calibration data over the range 5.0 × 10−7 to 20 × 10−6 M give a correlation coefficient (r 2) of 0.9972 with relative standard deviations (RSD; n = 4) in the range of 1.0–2.1% with a limit of detection (3 × blank noise) of 2.37 × 10−7 M for carbaryl. The sample throughput was 120 h−1. The effects of some carbamates, anions, and cations were studied on luminol CL system for carbaryl determination. The proposed method has been applied to determine carbaryl in natural waters.